Video: Want to buy a 75-million-year-old dino skeleton?

With skulls the size of small children and teeth that can claw through just about anything, the Tyrannosaurus Rex has become the dino darling of the prehistoric world.

On Sunday, the skeleton of a 75-million-year-old Tyrannosaurus bataar, a distant cousin to the infamous T-rex, will hit the auction block. While the giant skeleton will likely eventually land in a museum, Heritage Auctions says it could go to a private collector in the meantime.